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King Tides Reach Boston’s Long Wharf as Researchers Advance Living‑Shoreline Plans

Higher baseline water in Boston Harbor over the past century turns seasonal highs into a near‑term flooding warning.

Overview

  • Researchers with the Stone Living Lab documented water spilling onto walkways at Long Wharf on Wednesday during the seasonal high tides.
  • King tides are predictable astronomical events when the sun, moon, and Earth align, raising water levels a foot or more above the average high tide in fall and sometimes spring.
  • Stone Living Lab reports Boston Harbor’s sea level has risen roughly 10 inches to a foot over the last 100 years, compounding the effects of these tides.
  • The team cautions Boston should expect several coastal flooding episodes this fall linked to these higher‑than‑normal tides.
  • In response, the lab is working with the city to test nature‑based “living shoreline” adaptations and is engaging residents through a self‑guided High Tide Trail.